which number sentence is true ?

A.0.027 < 0.0027
B.0.0027 < 0.027
C.0.27 < 0.027
D.2.7 <0.27

D?

No.

Yes.

To determine which number sentence is true, you can compare the decimals to see which is greater. Let's compare each option:

A. 0.027 < 0.0027 - This would mean that the number 0.027 is less than 0.0027. However, this is not true, as 0.027 is greater than 0.0027.

B. 0.0027 < 0.027 - This would mean that the number 0.0027 is less than 0.027. This is true, as 0.0027 is indeed smaller than 0.027.

C. 0.27 < 0.027 - This would mean that the number 0.27 is less than 0.027. However, this is not true, as 0.27 is greater than 0.027.

D. 2.7 < 0.27 - This would mean that the number 2.7 is less than 0.27. However, this is not true, as 2.7 is greater than 0.27.

Therefore, the correct option is B. 0.0027 < 0.027.

The correct answer is D. To verify this, we can compare the numbers by looking at the digits one by one from left to right.

In option A, we have 0.027 and 0.0027. The first digit in both numbers is 0, so we move to the next decimal place. In the second decimal place, 0.027 has a 2 and 0.0027 has a 0. Since 2 is greater than 0, we can conclude that 0.027 is greater than 0.0027. Therefore, option A is false.

In option B, we have the same numbers as in option A, but in a different order. Using the same comparison process, we find that 0.0027 is indeed smaller than 0.027. So, option B is true.

In option C, we have 0.27 and 0.027. The first decimal place in both numbers is 0, so we move to the next decimal place. In the second decimal place, 0.27 has a 7 and 0.027 has a 2. Since 7 is greater than 2, we can conclude that 0.27 is greater than 0.027. Therefore, option C is false.

In option D, we have 2.7 and 0.27. The first decimal place in both numbers is 2, so we move to the next decimal place. In the second decimal place, 2.7 has a 7 and 0.27 has a 7 as well. Since the decimal places are the same, we move to the next decimal place. In the third decimal place, 2.7 has no digit, while 0.27 has a 0. Since 0 is smaller than any other digit, we can conclude that 2.7 is indeed greater than 0.27. Therefore, option D is true.

So, the correct answer is D.